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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Defining and Non-defining Clauses,Grammar,Defining and Non-defining Clau,objective,To use the Defining and Non-defining Clauses correctly,objectiveTo use the Defining a,语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。,语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让,Read these sentences and discuss which words in the sentences the clauses(in italics)refer to.,There were inventions and developments in China,which,were not available in Europe at that time,.,Marco was lucky enough to meet another prisoner,who enjoyed listening to his stories about China,.,The prisoner then wrote the stories in a book called The Description of the World,which became one of the best-selling books in Europe,.,Read these sentences and discu,Which of the clauses above gives,1)information to identify the person(s)/object(s)?(defining clause),2)extra information about a person or a thing,which can be left out?(non-defining clause),Which of the clauses above giv,限制性定语从句,:,所谓限制性定语从句就是先行词在意义,上不可缺少定语,如果去掉,主句就失,去意义或意义不完整。这种从句和先行,词的关系十分密切,写时不用逗号和主,句分开。,限制性定语从句和非限制性定语从句,:,限制性定语从句:限制性定语从句和非限制性定语从句:,Do you remember the girl who taught,us English,？,你还记得教我们英语的那个女孩吗？,(,如果把从句部分去掉,整个句子的含,义就变了。,),Do you remember the girl who t,非限制性定语从句,:,非限制性定语从句和主句的关系并不十,分密切,只是对先行词做些附加说明,如,果去掉,主句的意思仍然清楚。这种从,句和主句之间往往用逗号隔开。在讲话,时须停顿，一般不用,that,引导。,非限制性定语从句:,Mr.Zhang,who,came to see me yesterday,is an old friend of mine.,张先生昨天来看我，他是我的一位朋友。,(,去掉从句,主句的意义仍然完整,:,张先生是我的一位朋友。,),2.We walked down the village street,where,they were having market day.,我们沿着村里的大街向前走去，村民们正在那里赶集。,(,去掉从句,主句的意义仍然完整,:,我们沿着村里的大街向前走去。,),Mr.Zhang,who came to see me,限制性定语从句和非限制性定语从句的区别,限制性定语从句和非限制性定语从句的区别,限制性定语从句和非限制性定语从句的区别,限制性定语从句和非限制性定语从句的区别,引导非限制性定语从句的,which,可以指代前面的先行词，也可以指代前面整个句子。,That Peter will marry Alice,which,has not been announced yet,has spread around.,皮特要娶爱丽丝这件事，还没宣布，却已穿得沸沸扬扬,。句中的,which,指代“皮特要娶爱丽丝”这件事。,引导非限制性定语从句的which可以指代前面的先行词，也可以,除,which,外，还可用,when,where,who,whom,等关系副词或代词引导非限制性定语从句。,After graduation,I decided to stay in Chongqing,where,I spent my childhood and four years of college life.,Albert Einstein left Germany for the United States during the World War II,when,Jews were badly treated in Germany.,除which 外，还可用when,where,who,在限制性定语从句中，如果先行词作宾语时，引导词可以省略，但引导非限制性定语从句的引导词不能省，同时关系代词,whom,不能用,who,替换。,The American journalist,(whom/who),the announcer mentioned in the news broadcast is said to have been killed by the gangsters.,播音员在新闻广播中提到的那位美国记者据说已经被匪徒杀害了。,在限制性定语从句中，如果先行词作宾语时，引导词可以省略，但引,He was eager to go to the hospital to see his stepmother,whom,he loved and respected as his own mother.,他急于想去医院看望他的继母，他像对亲生母亲一样爱戴和尊敬她。,He was eager to go to the hosp,All the magazines here,which have beautiful pictures in them,were written by him.,里面有漂亮图画的那些杂志是他写的。,All the magazines here,which have beautiful pictures in them,were written by him.,所有的杂志都是他写的,里面都有漂亮的图画。,有时同一个限制性从句变为非限制性从句会改变全句的意思。,（杂志有带图画和不带图画两类）,（杂志只有一种）,All the magazines here which h,Mr.Smith,who,is our boss,will leave for Japan.,当先行词是地名人名、世界上独一无二的事物或家庭唯一成员时，通常只用非限制性定语从句。,Three of the biggest man-made projects in the world are the Great Wall of China,，,the Pyramids of Egypt and,the Aswan High Dam,，,which,is also in Egypt,世界上最大的三项人造工程是中国的长城，埃及的金字塔和阿斯旺高坝，它也在埃及。,Mr.Smith,who is our boss,wi,在,of which/whom,之前可以使用表达数量或定位的数词或代词。,1.I am doing different types of exercises,all of which,are quite helpful to my health.,2.Many people,some of whom,are not overweight,are going on diets.,3.There are 54 students in my class,three of whom,come from the US.,在of which/whom之前可以使用表达数量或定位的数词,非限制性定语从句应注意以下几点：,一、非限制性定语从句通常不能用,that,引导。,1.I like the book,which was bought,yesterday,.,我喜欢这本书，这是昨天买的。,2.I like the book,which/that was bought,yesterday,.,我喜欢昨天买的那本书。,非限制性定语从句应注意以下几点：一、非限制性定语从句通常不能,二、非限制性定语从句不能用,why,引导,要用,for which,代替,why,。,1.I had told them the reason,for which I,didnt attend the meeting,.,我已经把理由告诉了他们，为此我没 有去开会。,2.I had told them the reason,why I didnt,attend the meeting,.,我告诉了他们我不去开会的理由。,(,限制性定语从句“,the reason why.”,是,常见搭配。,),二、非限制性定语从句不能用why引导,三、非限制性定语从句置于句首时，不能用,which,引导。关系代词,as,引导非限制性定语从句位置比较灵活，可以放主句前，也可以放主句后。,1.,As I expected,he didnt believe me.,正如我所预料的，他不相信我。,2.She heard a terrible noise,which,brought her heart into her mouth,.,她听到一个可怕的声音，这让她把心,都提到嗓子眼了。,三、非限制性定语从句置于句首时，不能用which引导。关系代,四、非限制性定语从句由“介词,+,关系代词”引导时，其中的关系代词不能用,as,。,1.He bought the car for more than$20,000,with which his father was angry,.,他花两万多美元买了这辆车，他父亲,对此很生气。,2.I finished my work ahead of time,after,which I sat some time reading the,newspaper,.,我提前干完了我的活，随后我坐着看,了会儿报纸。,四、非限制性定语从句由“介词+关系代词”引导时，其中的关系代,THANKS,THANKS,
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